THE CONSIDERATION FOR STRENGTH OF SHIP HULL STRUCTURES CONTAINING FATIGUE CRACKS

The author carried out experimental and analytical investigations for the purpose of finding out the method of judging the safety of ship hull structural members containing fatigue cracks by means of Fracture Mechanics. In the first place, fatigue crack propagation tests were carried out under constant stress condition on the corner models and the slot part model, and for specimens with a center notch, similar tests were also conducted under two different stress conditions. From these test results, the author shows the applicability of the fatigue crack propagation law, da/dN=C delta K to the m power, to the structure model, and the retardation of fatigue crack growth in the case of changing from higher to lower stress. Next, using these experimental data and calculated results he investigated both the design curves for fatigue crack propagation and those for fracture in order to judge the safety or residual strength of structural members containing fatigue cracks.

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  • Corporate Authors:

    Society of Naval Architects of Japan

    23 Shiba-kotohiracho, Minato-ku
    Tokyo 135,   Japan 

    Society of Naval Architects of Japan

    15-16, Toranomon, 1-chome, Minato-ku
    Tokyo,   Japan 
  • Authors:
    • Shingai, K
  • Publication Date: 1973-12

Language

  • Japanese

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00072630
  • Record Type: Publication
  • Source Agency: Society of Naval Architects of Japan
  • Files: TRIS
  • Created Date: Dec 19 1974 12:00AM